peters



@faire strnt ffice.,-

.DAvID WHITTEMORE or ,NORTHv BRIDGEWATER, MASSACHUSETTS.'

l Letters .Patent No. 70,662, dated November 5, 1867.

'rumornunnr IN Mmmm-is renA Precise Boers Ann SHOES'.

i @te .Srlgihule referrer tu in tiges hifett @that mit mating pnt nf itssinn.

TO ALL WHQM. ITv CONCERN: n

Be it knownth'atlfDfI'D WHITTEMORE, of North Bridgewater, in the county-of Plymouth, and Stat'eof Massachusetts, have; invented certain -newand useful Improvements in Machines for Pegg'fing Boots and Shoes;

and do hereby declare the following to be a full and correct descriptionof the same, reference being had tothe accompanying drawings, in wl1ichi v I Figure 1 is a perspective front view ofthe heal ofthe machinecomplete.l

Figure 2 is a. perspective view ofn the driver-stock andyits-connections; the chimney l? being Vshown 'in section. c

Figure 3' is a horizontal section of .a part of the machine, takenthrough the centre of the feeding-sleeve.

`Figure 4 is a planter top view of aportion of the machineou a planelevel with the topoi' the feeding-sleeve.

` Figure 5 is a perspective detail view of the awl-stock and itsconnections.

A'Fig'yire is aperspectve enlarged view of the Slotted lever, which'operates the-feed-sleeve.

Figure 'T'is a similar view of the bent arm T andits connections.' v

Figure. 8 is a side elevation of the knife, .full size; a section on'line :z: :c being made part'of the 'gure. Figure 9 is a perspectiveView of the under Side of the front part'of the bed-plate'of themachine, showing the device for shifting the line of feed on the soleofthe boot or shoe. i e e The same letter marks the same part whereverit occurs.

These improvements relate .to the improved peg'ging machine-of W. R.Landfear', which belongs to thatclass of machines in which the boot orshoeis .held upon a jack, and pressed up agitinsta feeding device, whichmoves it under the awl and driver at the proper 'speed for the soleto heperforated and pegged in the well-known' mode. They consist in deviceshereinafter vmore particularly described, first, for operating thefeeding-sleeve; second, -for shifting the line of pegging withoutlstopping the machine; third, for preventing any movement of thepeg-wood while being cut by the knife;` and fourth, for severing thepeg's from the peg-wood in such a manner as to securetheadvantages bothof the lateral and vertical cut','hy a knife dividing the wood from thetop downward, all as hereinafter fully set forth. I

To enable'others skilled in'` the'art to make useof myimprovements inpeg'gng machines, Ivwill proceed to A describe the construction andoperation of the machine represented in the drawings, in which they areintroduced, referring tothe figures hy the letters of reference markedthereon.

A2 marks thev iron frame or bed to which the working nparts areattached. This is'supportedl'on a pedestal, (not shown,) of suitableheight and power, applied by means of a Vtreadle worked by theoperator', or from any suitable prime mover. A pitman, A, connects thetreadle withthe gear-wheels B C, the latter ofwhich is on the rear endof the main shaft D, to which the ily-'wheel E 'is attached. To theforward end oflshaft D is attached the crank-wheel F, (see figs 2 and5,) which is .connected vby the crank-pin Gnwith the sliding/block H,

which reciprocates horizontally in slot 'I in the sliding cross-head J.The cross-head J has a vertical reeipro..

catingmotion in guides J J2, in obedience tothe action of the block Hdriven by crank-pin G.- 'To the crosshead is attached the awl-stock K,which carries' the awlli, and rises andl falls with the head J.Thedrirerstoek M works through a groove in the cross-head, and isindependent in its movements ofthe head. It has a toe, N,

projecting from it, whichy is engaged by block H, as the crank revolves,and by which the stock M is'lifted.

When, by the further revolution of thecrank, the block H slips out fromunder: toe N, the driver-stock M is impelled forcibly downward by theaction of the spring `S. The driver O is attached to the lower end ofstock M. P marks a hollow tube, called a chimneygin which -thedriver-stock Mmoves. The upper end of stock My has a screw-thread on it,and is received by the nut The object of this arrangement Vis to adjustthe stroke of the driver O, so that it shall drive the pegs either evenwith the surface of the sole,or above or below that surface, as may berequired or preferred. The spiral spring S gives the downward impulseptothe driverbar when it is releasedfrora its engagement with, the blockH.'

Attached to the" rear side of thecross-head J is a'. bent arm, T, whichperforms several functions as the cross-head rises and falls. By meansof tivo projections b .it operates lever Y, (see figs. 1 and 3,)attached to which is pawl c, which impels the ratchet-wheel m on top offeed-roll d, by which the/peg-woodf is fed into the machine. By means ofpin o, (see g. 1,) it operates the slotted lever V, whichdrives thefeed-sleeve or roll.

To the bar T is also attached the knife g, which severs the pegsfrcm thestrip of peg-wood, one peg being cut o' at each descent of the bar. f

The arrangements for cutting the pegs in a more perfect manner than hasheretofore been done, constitutev the most important feature of myinvention. The most obvious mode of severing the pcg from the strip ofpeg- Wood was that of splitting them oil' by a knife cutting the woodfrom the top downward. This 'was accordingly adopted in most of theearly hand and power machines. But it was soon discovered that thismethod, as originally practised, was open to very serious objections.When the grain of the peg-wood was at all irregular, the cui; of theknife, owing to the loosencss with which both the wood and the knifewere held, and to the wedge shape of the latter, would follow the grain,and render the pegs uneven in width at their lower ends, and other-4wise irregular form, thus marring` the precision of action especiallynecessary in a-machine designed to run at high speed. The lateral cutarrangement by which the knife was applied on the side of the peg-wood,from top to bottom, and forced sidewise through the whole length of thepeg at the same time, was adopted with a view to cbviate the objectionsto the vertical mode of cutting, audit had the merit of correcting theirregularity in the form of the peg, which arose from the splittingaction of the knife in wood of irregulargrain; but it requires greaterpower than the splitting-knife, and is attended with the disadvantage offrequently forming a burr or splinter on the side of the peg farthestfrom the entering=line of the knife, which tends to clog the machinewith dust and chips, and interferes with the accurate driving of thepegs. I found by experiment that if the peg-wood were heldperfectlyimmovable while being cut, and the knife coniinedrigidly to amovement in one plane, and its cutting edge and 'all that portion of itwhich passed through the peg-wood made so thin as to havel scarcely anappreciable tendency to` split the wood by wedge action, the verticalcut, with its obvious advantages, might be restored, while theobjections to it, as well as those existing tothe lateral cut, wereentirely avoided. I therefore make lmy knife g (sec iig. 8) very thin onthe side which enters the peg-wood, the

` cutting edge being at' the lower corner, while the remainder of it ismade thick enough toinsure the requisite rigidity, This knife is soexactly fitted in the slot g" in which it works (see iig. 3)'as to beincapable of the least lateral vibration. The cut is, therefore, alwaysin the same plane, and the strip of peg-wood on which it operates beingrigidly and immovably xed while lthe knife is passing through it, thepegs severed from it are perfectly uniform in size and shape, and freefrom the imperfections which result from the lateral mode of u icutting. t t

- The peg-,wood f is inserted in a long strip at the point indicated infigs. 1 and 8. A spring, 71, presses it forcibly against the roughcnedroller a, operated by pawls c and Z, and, by the rotation of this rollerit is driven through a passage in the body of the axis Z of the sleeve,till it emerges inthe square hole k, in which the driver O works, (seegs. 3 and 4.-.) 'The peg-wood is held down by a bar, A', placed on topof it. vThis isitself held down by bolt B', which 'has a' collarupon itresting'on the top of bar A. A set-screw, C', fixes ther bolt B' ataydesired point, (see iig-3.) The pawl Z prevents the peg-wood fromslipping backwards when pawl c is disengaged from ratchet-wheel m, andwhile the knife is passing through the peg-wood.

The leser V has a collar (see iigs. 3 and 8) which cmbracestherearportion of the fecdingslecve, and moves loosely pn it. The slot 'vinv the arm of'this lever is of the form represented in tig. 1, so thatat the latter part ofthe downwardv movement-of the bead J and bar T, andat the beginning of their upward movement, the lever V will bestationary,`but will be raised at the'last part of the upward movementso f bar T, and depressed -at the beginning of itsdownward movement. Apawl a attached to the face of lever V engages the ratchet W on thesurface of the feed-sleeve, and drives that sleeve the distance betweentwo teeth atevery oscillation of the lever, themovement taking placeafter the peg-hole has beenmade, and just before 4the peg is driven, tbeeifect of the movement being to bring the peg-hole under the driver toreceive the peg.

The feeding-sleeve (see figs. 1, 3, 4, and 9) is a hollow cylinder,which moves on a cylindrical axis, Z, projecting from the frame. Therear belt of the cylinder orsleeve is smooth, to engage the brake D',and to receive the collar of lever V, which moves freely on it, asbefore observed. The middle belt of its surface has the' ratchet W cutupon it, which engages with pawl a on lever V, to drive the feed-sleeveby the movement of the latter. The front belt'X of the surface of thesleeve is roughencd, so that it will take hold of the sole of the bootor shoe, and feed it along by friction, as the sleeve lmoves on itsaxis. To control the movement of the feed-sleeve, and prevent itsturning backwards when released from contact with theawl and driver, Iemploy a brake, D', (see figs. 3 and 4,) whichis made to ,press withgreater or less force, as may be required, against the rear belt of thesurface of the feed-sleeve, which it partly embraces. The pressure ofthe brake against the sleeve is regulated by the sctfscrew E', which canbe tightened or loosened as required.

On thefront end of` axis Z are attached the plates G F,by means ofscrews passing through the holes z'z' (see figs. 8, 5, and 8.) The twoplates are grooved, as shown, so thatwhen brought together and attachedto the axis, they form passages j for the awl L and driver O. The innerplate G has an oblong opening in it, to allow ofthe exit of the peg fromthe passage in theaxis Z to the driver-groove 7c. i

Fig..'9 is an under view of the front portion of the machine, showingthe device for shifting the position of the boot or shoe, so as 'tochange the line of pegging without stopping the motion pf the machine,It is required to be used when a double row of pegs iste be inserted. Itconsists of a slide, S', having a shoulder, r, on its forwardend, and abevelled toe,p, on its rear end. A slot, w, in the slide, receives thetwo screwpins t t, which` conne the slide tolthe under side of theframe, arid allow it a horizontal reciprocating motion. A springfa,retracts the slide towards the rear of the machine. It is drivenforwards by the bevelled toe which forms the end of the short arm oflever L'. By depressing lever L', the toe-y is forced up behind the toep, and the slide S is impclled forwards. The change is made in aninstant by a touch of the lever.

The operation is as follows: The boot or shoe to bepcgged is placed on ajack, yand brought up into contact with the roughened face of thefeed-sleeve, the edge of the sole beingin contact with the shoulder. Theawl and driver being both at their highest position,` motion is impartedto the machine, and the awl I descends, per* forates-the sole, and isimmediately withdrawn. The feed-sleeve is then rotated by pa'wl a, andvadvances vthe shoe a distance equal to that between the awl and driver.This brings the awl-hole directly under thedrver.

The space between the knife g and driver-hole k is filled with pegswhich have been severed' from the strip of peg-wood. By the rotation' ofroller d; these pegs are successively presented under the driver in holek. As soonas the'peg-hole comes directly under the' driver, the toc N ofthe driver-stock slips from thev top ot' block H, and the driver Odescends and drives thepeg into the hole prepared by the awl. Thefurther rotation of the crank-wheelagain drives the awl and withdrawsboth awl and driver for a repetition of the operation. When one row ofpegs has been driven around the sole, the -sole is shifted so as to bein proper position for the second row of pegs by-depressing lever L.

` I have embraced in the foregoing specification a description of theLandfear machine, to show the relations p of my improvements to it. Iwish it to be understood, however, that I dis-claimall features notenumerated in the following specific statement of the parts which Ibelieve to be new and of my invention.

Having thus fully described my improvements, what I claim, and desiretosecure by Letters Patent, is-

1. The lever V, with its bent slot U and pawl a, in combination with thebar T and the ratchct'on the surface of the feed-sleeve, all constructedand operating substantially as described. y

2. The slide S', operating as described, and worked by lever L',substantially in the manner and for the purpose specified. K

3. The lsupplemental pavvl l, engaging the ratchet-wheel m, when thepawlc is disengaged from it, for the purpose of preventing the peg-wood fromslipping backward while the feed-roll is freed from the action `of pawlc, and' the knife is severing the peg,'thus aiding in impartingsteadiness and precision to the movements of lthe peg-wood, as setforth'. i

4. The knife g, constructed, arranged, and operating in the mannerdescribed. The above specication of Amy said invention signed andwitnessed at Boston.l this 18th day of June, A. DQ1867.

D. WHITTEMORE. Witnesses:

Cms. F. SrsNssUM, f WILLIAM G.'GLEvELANn.

